Blow-torch.



N0.a4 9,22o.- PATENTEDAPR'.2,1907.

F. @.6511 R. BMMELMANM y BLOW TORCH.

APPLICATION FILED JAN.8.I1906.

ma mmnls PE1-Ens ce. wAsHmn'InN. D, C.

TINITED STATES PATENT OTTTOE.

FRED GEORGE EMMELMANN AND HARRY ROBERT EMMELMANN, OF

INDIANAPOLIS, INDIANA.

BLOW-TORCH.

Speccation of Letters Patent.

Patented April 2, 1907.

Application iilecl January 8, 1906. Serial No. 295,026.

To all whom t may concern.-

Be it known that we, FRED GEORGE EM- MRLMANN and HARRY ROBERT EMMELMANN, citizens of the United States, residing at Indianapolis,connty of Marion, and State of Indiana, have invented a certain new and useinl Improvement in Blow-Torches, of which the following is a specification.

Our invention relates to a new and useful improvement in blow-torches, and has for its object to so construct such a torch as to entirely overcome the many disadvantages attendant upon the present-day construction.

IVith these ends in view this invention consist-s in the details of construction and combination of elements hereinafter set iorth and then speeiiically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by letter to the accompanying drawings, forming a part of this speciiication, in which- Figure l is an elevation of a torch made in accordance with our improvement 5 Fig. 2, a vertical section of the saine, the burner being omitted; Fig. 3 a plan view Fig. 4, a detail section oi' one of the handle-clips at the line a; oi Fig. 3 looking in the direction of the arrow, illustrating the manner oi` securing the band-wires to the clips.

In carrying out our invention as here illustrated, A represents the body of the torch, which is made of a single piece of tubing threaded externally at its upper and lower ends, as indicated at B, and C represents the top, which is made of a single casting, the flange oi which is threaded internally, so as t'o run upon the threads B on the upper end oi the body. This top casting has formed thereon the internally-threaded bosses D and E, the former being for the reception of the shank F oi the burner, while the latter is for the reception of pump-barrel G, which is externally threaded, so as to be screwed into said boss.

II is the bottom, which has a single casting, its flange being threaded internally, so as to be screwed upon the lower end of the body, and its bottom casting has formed thereon the externally-threaded boss I, adapted to receive the filling-cap J, which is threaded internally, so as to screw upon said boss.

The cap J has a lug K formed therewith, through which loosely passes the rod L, each end of which is provided with a head IVI, so as to prevent its withdrawal from the lug. The object of this arrangement is to provide for screwing the cap into place or removing it when the torch is to be illed without the use of a wrench, enabling the operator to perform this function with the ingers, as will be readily understood.

N and N are the handle-clips, each of which is Amade of a single cast-ing, the inner ends of which are of the same contour as the body of the top and bottom casting and are adapted to rit against said casting, as clearly shown in Fig. 3, and each of these clips is provided with the ears O, in `which are formed holes for the reception of the band-wires I). These band-wires lie within the grooves Q, formed in the top and bottom castings, so as to retain them against displacement, and the ends of these wires pass through the holes in the clips, one end of each wire being headed up, as indicated at R, while the opposite ends are threaded and have run thereon the nuts S. These nuts are slotted for the reception of a screw-driver, by which means the bandwires may be drawn tightly around the top and bottom castings, thus firmly securing the handle-clips in place. Another advantage of this arrangement is that when it is desired to use the burner upon the side of the torch or at an angle to the handle it may be readily adjusted by slightly backing o' the nuts S and turning the handle to any angle desired relative to the burner and again tightening the nuts S. This is of great advantage in practice, as it enables the operator to use the torch to the best advantage and any place where it would be impracticable to use the same with the burner not adjustable' relative to the handle.

T represents the grip of the handle, which is made of a single piece of tubing, the ends of which are seated in recesses or sockets formed in the clips, and a rod U is passed through a hole in the upper clip, its lower end being threaded through the lower clip, said rod having a slotted head V, and after it has been screwed into place the lower end is then riveted or headed up, as indicated at I/V, so as to prevent the rodfrom being accidentally displaced.

In assembling our improved torch the IOO threads B at the top and bottom of the body tom consisting of a single casting provided A are tinned prior to screwing the top and bottom casting into place, and after these parts are screwed together these threaded joints are sweated, so as to unite the surface of the threads, making an absolutely tight joint and preventing the top and bottom casting from working loose, and as a further precaution we run a fillet of solder around the edges of the flange of both the top and bottom casting, as indicated at a.

By our improvement an exceedingly durable torch is provided, which cannot leak and which will permit of the burner being adjusted at various angles to the handle and provide for the filling of the torch without the use of a Wrench, and all of the parts are interchangeable, so should that any part become damaged another may be substituted therefor.

In practice we prefer to make the top and bottom casting of nickel-aluminium and the body of brass; but of course any other metal may be used. y

Having thus fully described our invention, what we claim as new and useful isl. As a new article of manufacture, a blowtorch consisting of a vtubular body threaded externally at both ends, a top and bottom each consisting of a single casting and threaded upon the body, said threaded oints being tinned and sweated, two clips screwed to said castings by band-wires passing around the latter a grip connecting the clips and a fillingcap having a wrench-rod loosely passing throu h a lug formed upon said cap.

2. n a blow-torch the combination of a body formed of a single piece of tubing, threads formed upon both ends of said body, a top consisting of a single casting having internal threads for engagement with the threads of the upper end of the body, a botwith internal threads for engagement with the threads upon the lower end of the body, two band-wires, one fitted in a groove formed around each of the top and bottom castings, clips to which the ends of said wires are attached for securement to the castings, means for tightening and loosening said wires, a grip consisting of a single piece of tubing formed upon sockets formed in the clips, a rod passing through the upper clip and threaded into the lower clip, the end of which rod is riveted so as to hold the grip in place, a cap threaded upon a boss formed on the bottom casting and a wrench-rod passing loosely through a lug upon the cap, as and for the purpose set forth.

3. In combination with a blow-torch of the character described, a handle consisting of two clips connected by a rip consisting of a single piece of tubing anil secured together by a rod passed through the two clips and two band-wires one of which passes around and lies in a groove formed in the top of the torch the other passing around and lying in a groove formed in the bottom of the torch, one end of which wires being held in one of the clips by a rivet-head. the other end of which wire being provided with a nut whereby the wires may be tightened upon the torch to hold the clips in place or loosen for adjusting the handle relative to the burner, as specified.

In testimony whereof we have hereunto affixed our signatures in the presence of two subscribing witnesses.

FRED GEORGE EMMELMANN. HARRY ROBERT EMMELMANN.

Witnesses:

CHARLES A. HELM, GEORGE JAMES STREBEL. 

